Remove Ruby 1.9.3/Puppet 3.8 travis tests
Remove Ruby 1.9.3/Puppet 3.8 travis tests

Puppet 3 is no longer supported, so testing it isn't a high priority
anymore.

MiamiOH/puppet-filebeat,pcfens/puppet-filebeat,MiamiOH/puppet-filebeat,pcfens/puppet-filebeat